These BCI-24b, BCI-24c Canon BJC-5500 compatible printer ink cartridges are quality guaranteed compatible Canon BJC-5500 printer inkjet cartridges. Our Canon BJC-5500 printer cartridges are tried and tested before going on sale to avoid any returns which is better for the customer and ourselves, BCI-24bk and BCI-21bk are the same cartridge, as is the colour BCI-24c and BCI-21c, all items have a 100% no quibble guarantee for printing quality.